Breadcrumbs

The cement sector is at odds with the principles of the circular economy

False. Every year the Italian cement sector recovers over 7% of its raw material requirements from other industrial processes, for a total of about 1.8 million tons of natural raw material replaced.

These recovered materials take the place of natural raw materials that are introduced into the grinding process to obtain the raw meal used to produce the clinker.

Furthermore, the UNI EN 197/1 standard permits the reduction of the clinker content per unit of cement, allowing the use of raw materials derived from other industrial processes. To date, the substitution of material that replaces clinker per unit of cement is around 25%, and the entire supply chain is working to increase this percentage every day.

Moreover, more than 350,000 tons of waste are kept out of landfills and incinerators and used instead as alternative fuels in kilns for the production of clinker, with a caloric substitution of about 17%, and more than 250,000 tons of CO2 are not emitted in the atmosphere thanks to the fact that these fuels contain biomass.

The action and interest of the sector in extending the use of recovered raw materials is therefore constant, in order to achieve European objectives and actively contribute to the transition to an increasingly circular economy.

The cement industry does nothing to reduce its CO2 emissions

False. The cement industry, responsible for about 5-6% of global CO2 emissions, is constantly investing in technologies and solutions to reduce its environmental impact:

  • Reduction of the amount of clinker (which determines about 2/3 of the emissions in question) per unit of cement with alternative materials (slag, pozzolana, fly ash, limestone and calcined clays).
  • Encouragement to improve the way its customers use cement to reduce its dosage in the concrete produced (efficiency of the cement in the concrete).
  • Improvement of the thermal and electrical efficiency of its plants, reducing both costs and CO2 emissions.
  • Use of already decarbonated raw materials, i.e. that don't emit CO2, in the production of clinker and cements.
  • More consciousness and integration with the construction supply chain to improve the performance of product design and innovation, lower environmental impact, optimize construction spaces and, ultimately, use less materials, reaching even so the same design objective.
  • Applied research on new hydraulic binders derived from the production of special clinkers with lower emissions.
  • Active research and dedicated projects on CO2 capture systems like the Cleanker project (www.cleanker.eu or https://youtu.be/QmppT0h12Ng).